Improvement in harvester-cutter holders for grinders



analistas 'rHEoDoEE E. KNeoE CLEVELAND, AND GEORGE c. DOLPH. ory WEST Y `ANDoVEarorno. i

Letters YPatent No.l 107,784, dated September 27, 1870.

IMPROVEIVIEN'IT `IN HARVESTER-CUTTER HOLDERS FOR GRINDERS.

vThe fSchedule `referred to in theseI-etters Patent and making part of the-same.

To all whom it may concern:`

15e-it known th'atrwe, THEODOIQE E. KING, of Cleveland, in the county of Ouyahogaaml'State of Ohio, and GEORGE C. DQLPH, of West Andover, in

the county of Ashtabula and State ot' Ohio, have invented certain new au`d.useful Improvementsin Harvester-Gutter Grinders, oftwhich the following is a fulland complete description, reference being had to the accompanying drawing `making a part of 'this specification,l in whichuniformity in their angular shape, and to the bevel-V angle of their cutting-edge, as hereinafter more fully i V described. i

4In the drawing, g. 1 p l A is aframe, in which thestcue B is hung, and Op.

cratcdin the usual' way. -v

' On each end ot' the` frame is. a table, G, on 'which the device for holding the cutters is placed and secured.'f y i Said device consists of a .dat piece, of timber or bar, D, pivoted to the table, so that it can be turned -horizontallymore or less in either directioxnand.which may be secured in any one position by a set-screw, E. Lengthwise to said bar is hinged a` leaf', I", lig. 1, which, by virtue of the 'hinges g, may bevibrated in the direction ot' the stone.

To the upper edge 'of said leaf F is hinged, in like manuel', a leaf', H, which also may be vibrated inthe direction of the stone, independently ot' the leaf ll, or conjointly therewith. i

Along the under side of the groove, I, `figs. 2 and 4.`

rIhe practical operation of the above-described cutter-helder is as follows :Q f

The cutters J are secured to the leaf H, as shown in lig.` `4, iu which it will be seen that, the cutter-bar upper leaf` is cut a is slid into the groove I, referred to, and that the ends of the sections or cutters slide vunder the clamps K, and, thereby, are held from falling from the leaf'. The

cutters thus secured to theleaf are shown in lig. 4.

In order to bring the edge of a section to the stone, and adjust itat the properjaugle, the bar D is turned at an angle to the face otgthe stone, as shown in fig.

`justed to the edge of the stone.

3. This 4will bring the notch L, seen in the middle ot' the leaf H, to the corner of the stone. Saidfnotch' is of the shapetof a section or knife, hand through which the edge ot' the section eau be seen and ad- This position of the' bar and leaves will give the proper? bevel-angle to the cutting-edge of the sections, vthe length of which-is applied to the stone' by vibrating the leaves F H', which will cause the basil ofthe section to move lengthwise upouthe face of the stone,

thereby grinding it to anjcdige, and cach one to the same angle.

The edge of a section, on being ground, 'the'cuttcrn bar is then moved along until the'corresponding edge ot' another section is brought to the stone, which, in like manner, is ground, and so on until all the edges of one side ot the ksections are ground. l

lhe posit-ion of the bar is then changed from thatv shown in tig. 2, to that shown in fig. 4.; This will bring the opposite edge of each section in the same relation to thestone, so that vthe edge of `the sections' may be ground in t-he same way, and of the same basil,

care being taken to adj ust the bar at the same angle 'to the face of the stone in its new position, as it held in its first.

Instead of shifting the bar Sac.- `to the other side of the stone, as described, the same result maly be obtained bynoving it along upon the table to the hole a., making that point the axis of its vibration, which will bring the notch L to the opposite corner of the stone. By this means the face ot' the stone can-be kept straight, as both corners in this way will be worn down equallyv 'lhe above-described rest or holder is simple in its Y construction and operation, and can he easily applied to any ordinary grindstoue.

Claim. What I claim asmy invention, and desire to secure by Letters Patent, is- Y The herein-described harvester-cutter holder or rest,-

-consisting of the baril), and leaves F and H, as ar- W itnesses i W. H. Brummen, J. H. Brummen. 

